python3: add reproducible-buildinfo.diff

Author: obfusk

pythonforandroid/recipes/python3/__init__.py

@@ -62,6 +62,7 @@ class Python3Recipe(TargetPythonRecipe):
 
     patches = [
         'patches/pyconfig_detection.patch',
+        'patches/reproducible-buildinfo.diff',
 
         # Python 3.7.1
         ('patches/py3.7.1_fix-ctypes-util-find-library.patch', version_starts_with("3.7")),

pythonforandroid/recipes/python3/patches/reproducible-buildinfo.diff

@@ -0,0 +1,13 @@
+# DP: Build getbuildinfo.o with DATE/TIME values when defined
+
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -785,6 +785,8 @@ Modules/getbuildinfo.o: $(PARSER_OBJS) \
+ 	      -DGITVERSION="\"`LC_ALL=C $(GITVERSION)`\"" \
+ 	      -DGITTAG="\"`LC_ALL=C $(GITTAG)`\"" \
+ 	      -DGITBRANCH="\"`LC_ALL=C $(GITBRANCH)`\"" \
++	      $(if $(BUILD_DATE),-DDATE='"$(BUILD_DATE)"') \
++	      $(if $(BUILD_TIME),-DTIME='"$(BUILD_TIME)"') \
+ 	      -o $@ $(srcdir)/Modules/getbuildinfo.c
+ 
+ Modules/getpath.o: $(srcdir)/Modules/getpath.c Makefile